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20w at Sparks Warehouse

Shop the full range of 20w, available at a competitive price.

Sparks Warehouse takes pride in being one of the UK's biggest and most trusted electrical supplier with an extensive offering of over 200 000 products. Need help finding the product you need? Get in touch with our friendly support team and we should be able to assist you in sourcing.

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  • Knightsbridge T420TUBE 20W T4 Fluorescent TUBE KB Knightsbridge - Sparks Warehouse

    Knightsbridge T420TUBE 20W T4 Fluorescent TUBE - DISCONTINUED

    Knightsbridge
    $5.00 - $5.00
    $5.00
    $5.00 - $5.00
    $5.00

    T4 20 Watt 4000k Cool White Tube. Length: 565mm

    $5.00 - $5.00
    $5.00
    $5.00 - $5.00
    $5.00
  • Knightsbridge BA03B3MW IP44 GU10 Triple Bar Spotlight - Matt White Ceiling Light Knightsbridge - Sparks Warehouse

    Knightsbridge BA03B3MW IP44 GU10 Triple Bar Spotlight - Matt White

    Knightsbridge
    $73.00 - $73.00
    $73.00
    $76.00
    $76.00 - $76.00
    $76.00

    Triple IP44 GU10 spotlight, in a smooth matt white finish. Ideal for domestic and commercial use. Also available in single and triple bar spotlight...

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    $73.00 - $73.00
    $73.00
    $76.00
    $76.00 - $76.00
    $76.00
  • GU4 20W Halogen Spot - 10Deg - 12v - Casell - sparks-warehouse
    Sold out

    GU4 20W Halogen Spot MR11 35mm - 10 Deg - 12v

    Casell
    $4.00 - $4.00
    $4.00
    $4.00 - $4.00
    $4.00

    12v 20w GU4 35mm MR11 10 degree Dichroic Reflector Bulb with Glass Front. Specification Category Halogen Lighting Type Halogen Spot Bulbs Ca...

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    $4.00 - $4.00
    $4.00
    $4.00 - $4.00
    $4.00
    Sold out
  • GY6.35 20W Halogen Capsule - Axial Filament - 12v - Casell - sparks-warehouse

    GY6.35 20W Halogen Capsule - Axial Filament - 12v

    Casell
    $3.00 - $3.00
    $3.00
    $3.00 - $3.00
    $3.00

    Specification Category Halogen Lighting Type 2-Pin Halogen Capsule Bulbs Cap GY6.35 Volts 12v Watts 20w Finish/Colour Clear Life 2...

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    $3.00 - $3.00
    $3.00
    $3.00 - $3.00
    $3.00
  • G4 20W Bulb Halogen Capsule - 12v - Casell - sparks-warehouse

    G4 20W Bulb Halogen Axial Filament Capsule - 12v

    Casell
    $3.00 - $3.00
    $3.00
    $3.00 - $3.00
    $3.00

    Specification Category Halogen Lighting Type 2-Pin Halogen Capsule Bulbs Cap G4 Volts 12v Watts 20w Finish/Colour ...

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    $3.00 - $3.00
    $3.00
    $3.00 - $3.00
    $3.00
  • T4 20w White/835 578mm Fluorescent Striplight Tube for Eterna Fitting - 3500 Kelvin - Casell - sparks-warehouse

    T4 20w White/835 578mm Fluorescent Striplight Tube for Eterna Fitting - 3500 Kelvin

    Casell
    $11.00 - $11.00
    $11.00
    $11.00 - $11.00
    $11.00

     Length Quoted for a florescent tube includes the pins at each end   Specification Category Fluorescent Tubes Type T4 F...

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    $11.00 - $11.00
    $11.00
    $11.00 - $11.00
    $11.00
  • M252 GU5.3 20W Spot bulb - 12v - Blue Halogen Bulbs Casell - Sparks Warehouse

    M252 GU5.3 20W Spot bulb - 12v - Blue

    Casell
    $9.00 - $9.00
    $9.00
    $9.00 - $9.00
    $9.00

    Specification Category Halogen Lighting Type Halogen Spot Bulbs Cap GU4 Volts 12v Watts 20w Finish/Colour Blue Life 3000 hours L...

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    $9.00 - $9.00
    $9.00
    $9.00 - $9.00
    $9.00
  • Casell M269-CA Halogen Spot 20w 12v GU5.3 51mm 36° Dichroic Light Bulb - Casell - Sparks Warehouse

    Casell M269-CA Halogen Spot 20w 12v GU5.3 51mm 36° Dichroic Light Bulb

    Casell
    $4.00 - $4.00
    $4.00
    $4.00 - $4.00
    $4.00

    Specification Category Halogen Lighting Type Halogen Spot Bulbs Cap GU5.3 Volts 12v Watts 20w Finish/Colour Clear Life 3000 hours ...

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    $4.00 - $4.00
    $4.00
    $4.00 - $4.00
    $4.00
  • Knightsbridge T8LEDP18DL 230V IP20 20W T8 4ft LED Tube 6000K Light Switches Knightsbridge - Sparks Warehouse
    Save $6.00 Save $0.00

    Knightsbridge T8LEDP18DL 230V IP20 20W T8 4ft LED Tube 6000K

    Knightsbridge
    $14.00
    $14.00 - $14.00
    $14.00
    $8.00
    $8.00 - $8.00
    $8.00

    230V 20W T8 LED Tube - 4ft Alternative to classic T8 fluorescent lampsInstant ignition Integral driver and mercury free components, ensuring safety...

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    $14.00
    $14.00 - $14.00
    $14.00
    $8.00
    $8.00 - $8.00
    $8.00
    Save $6.00 Save $0.00
  • PLEC 20W Fly Killer bulb SES / E14 - 240v Compact Fluorescent Lamps Casell - Sparks Warehouse

    PLEC 20W Fly Killer bulb SES / E14 - 240v

    Casell
    $24.00 - $24.00
    $24.00
    $24.00 - $24.00
    $24.00

    Specification Category UV Lamps Type Blacklight/Flykiller Cap E14/SES Volts 240v Watts 20w Finish/Colour Flykiller BL350/368 Life ...

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    $24.00 - $24.00
    $24.00
    $24.00 - $24.00
    $24.00
  • GU5.3 20W Halogen Spot - 24° - 12v - Casell - sparks-warehouse

    GU5.3 20W Halogen Spot - 24° - 12v

    Casell
    $4.00 - $4.00
    $4.00
    $4.00 - $4.00
    $4.00

    Specification Category Halogen Lighting Type Halogen Spot Bulbs Cap GU5.3 Volts 12v Watts 20w Finish/Colour Clear Life 3000 hours ...

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    $4.00 - $4.00
    $4.00
    $4.00 - $4.00
    $4.00
  • G4 20W Halogen Capsule - 12V Halogen Bulbs Casell - Sparks Warehouse

    G4 20W Halogen Capsule - 12V

    Casell
    $3.00 - $3.00
    $3.00
    $3.00 - $3.00
    $3.00

    Specification Category Halogen Lighting Type 2-Pin Halogen Capsule Bulbs Cap G4 Volts 12v Watts 20w Finish/Colour Clear Life 2000 ho...

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    $3.00 - $3.00
    $3.00
    $3.00 - $3.00
    $3.00
  • Knightsbridge FLN20 IP65 230V IP65 20W Fast Fix LED Flood Light - 4000k Flood Light Knightsbridge - Sparks Warehouse

    Knightsbridge FLN20 IP65 230V IP65 20W Fast Fix LED Flood Light - 4000k

    Knightsbridge
    $10.00 - $10.00
    $10.00
    $20.00
    $20.00 - $20.00
    $20.00

    IP65 LED Flood Light 20w Manufactured from Die Cast Aluminium Body . Accessories include optional PIR or Microwave sensors , connectors allow cable...

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    $10.00 - $10.00
    $10.00
    $20.00
    $20.00 - $20.00
    $20.00
  • GU4 20W Halogen Spot - 17Deg - 12v - Casell - sparks-warehouse

    M251 - GU4 20W Halogen Spot - 17Deg - 12v

    Casell
    $7.00 - $7.00
    $7.00
    $7.00 - $7.00
    $7.00

    Specification Category Halogen Lighting Type Halogen Spot Bulbs Cap GU4 Volts 12v Watts 20w Finish/Colour Clear Life 3000 hours ...

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    $7.00 - $7.00
    $7.00
    $7.00 - $7.00
    $7.00
  • Casell M269-ALU-CA Halogen Spot 20w 12v GU5.3 51mm 36° Aluminium Light Bulb - Casell - Sparks Warehouse

    Casell M269-ALU-CA Halogen Spot 20w 12v GU5.3 51mm 36° Aluminium Light Bulb

    Casell
    $6.00 - $6.00
    $6.00
    $6.00 - $6.00
    $6.00

    Halogen Aluminium reflector. Pushes the Heat Forward Specification Category Halogen Lighting Type Halogen Spot Bulbs Cap GU5.3 Volt...

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    $6.00 - $6.00
    $6.00
    $6.00 - $6.00
    $6.00
  • G4 20W Halogen Capsule - 24V - Casell - sparks-warehouse

    G4 20W Halogen Capsule - 24V

    Casell
    $8.00 - $8.00
    $8.00
    $8.00 - $8.00
    $8.00

    Specification Category Halogen Lighting Type 2-Pin Halogen Capsule Bulbs Cap G4 Volts 24v Watts 20w Finish/Colour Clear Life 2000 ho...

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    $8.00 - $8.00
    $8.00
    $8.00 - $8.00
    $8.00
  • Knightsbridge T8LEDP18CW 230V IP20 20W T8 4ft LED Tube 4000K Light Switches Knightsbridge - Sparks Warehouse
    Save $7.00 Save $0.00

    Knightsbridge T8LEDP18CW 230V IP20 20W T8 4ft LED Tube 4000K

    Knightsbridge
    $15.00
    $15.00 - $15.00
    $15.00
    $8.00
    $8.00 - $8.00
    $8.00

    230V 18W T8 LED Tube - 4ft Alternative to classic T8 fluorescent lamps up to 130lm/w Instant ignition Integral driver 4000K, Cool White, 2295lm N...

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    $15.00
    $15.00 - $15.00
    $15.00
    $8.00
    $8.00 - $8.00
    $8.00
    Save $7.00 Save $0.00
  • GU4 20W Halogen Spot - 10Deg - 24v - Casell - sparks-warehouse

    GU4 20W Halogen Spot - 10Deg - 24v

    Casell
    $8.00 - $8.00
    $8.00
    $8.00 - $8.00
    $8.00

    Specification Category Halogen Lighting Type Halogen Spot Bulbs Cap GU4 Volts 24v Watts 20w Finish/Colour Clear Life 3000 hours Le...

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    $8.00 - $8.00
    $8.00
    $8.00 - $8.00
    $8.00
  • Casell GBF-CA 12v 20w Ba15d 37mm 35° Frosted Aluminium Reflector - Casell - Sparks Warehouse

    Casell GBF-CA 12v 20w Ba15d 37mm 35° Frosted Aluminium Reflector

    Casell
    $19.00 - $19.00
    $19.00
    $19.00 - $19.00
    $19.00

    Casell Aluline37 lamp with a frosted front lens used in display lighting or other accent lighting. There are various other applications.

    $19.00 - $19.00
    $19.00
    $19.00 - $19.00
    $19.00
  • Low Energy GLS Bulb 20W ES / E27 - Warm White Compact Fluorescent Lamps Casell - Sparks Warehouse
    Sold out

    Low Energy GLS Bulb 20W ES / E27 - Warm White

    Casell
    $8.00 - $8.00
    $8.00
    $8.00 - $8.00
    $8.00

    Specification Category Energy Saving Bulbs Type Energy Saving GLS Bulb Cap E27/ES Volts 240v Watts 20w Energy saving replacement for 1...

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    $8.00 - $8.00
    $8.00
    $8.00 - $8.00
    $8.00
    Sold out
  • Casell LC20ES-86-CA 85-300v 20w E27 LED 6500k Corn 2048lm - Casell - Sparks Warehouse

    Casell LC20ES-86-CA 85-300v 20w E27 LED 6500k Corn 2048lm

    Casell
    $45.00 - $45.00
    $45.00
    $45.00 - $45.00
    $45.00

    Casell LED Corn Lights offer an affordable energy saving LED solution if you are looking to replace SON (HPS), Mercury, Metal Halide (MH) FAR HIGHE...

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    $45.00 - $45.00
    $45.00
    $45.00 - $45.00
    $45.00
  • Casell GBE-CA 12v 20w Ba15d 37mm 18Deg Aluminium Reflector - Casell - Sparks Warehouse

    Casell GBE-CA 12v 20w Ba15d 37mm 18Deg Aluminium Reflector

    Casell
    $19.00 - $19.00
    $19.00
    $19.00 - $19.00
    $19.00

    Casell Aluline37 lamp used in display lighting or other accent lighting. There are various other applications.

    $19.00 - $19.00
    $19.00
    $19.00 - $19.00
    $19.00
  • Casell GBE-FR-CA 12v 20w Ba15d 37mm 18Deg Frosted Aluminium Reflector - Casell - Sparks Warehouse

    Casell GBE-FR-CA 12v 20w Ba15d 37mm 18Deg Frosted Aluminium Reflector

    Casell
    $19.00 - $19.00
    $19.00
    $19.00 - $19.00
    $19.00

    Casell Aluline37 lamp with a frosted front lens used in display lighting or other accent lighting. There are various other applications.

    $19.00 - $19.00
    $19.00
    $19.00 - $19.00
    $19.00
  • GZ4 20W Halogen Spot - 20deg - 12v - Casell - sparks-warehouse
    Sold out

    GZ4 20W Halogen Spot - 20deg - 12v

    Casell
    $15.00 - $15.00
    $15.00
    $15.00 - $15.00
    $15.00

    Specification Category Halogen Lighting Type Halogen Spot Bulbs Cap GZ4 Volts 12v Watts 20w Finish/Colour Clear Life 3000 hours ...

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    $15.00 - $15.00
    $15.00
    $15.00 - $15.00
    $15.00
    Sold out